Abstract: In one embodiment, a computerized method facilitates invoicing for transactions in a network-based transaction system. The method includes identifying a plurality of transactions to which a first entity is a party, identifying first and second transactions from the plurality of transactions that satisfy combinable criteria relating to combining transactions into a single invoice, and providing to the first entity an indication of the combinability of transactions of the first and second transactions into the single invoice. The method can also be implemented on a machine readable medium.